Steam-pipe conduit.



' Patented May 18, 1909.

S. W.HERSEY.

STEAM PIPE GONDUIT. APPLIOATION FILED rEB.1a,'1-90e WZZneascs I WM/MM.

and useful 'Im Conduits,

earn W1 HERSEY, or PORTLAND, MAINE.

STEAM-PIPE QONDUIT.

Specification of Letters Patent.

Patented May 18, 1809.

, Application filed February 15, 1909. Serial No. 477,987.

To all whom it may concern:

Be it known that I, SETH W. HERSEY, of Portland, in the county of Cumberland, State of Maine, have invented'c'ertain new rovements in Steam-Pipe of which the following is a specification. i

My invention relates to underground conduits for carrying steam pipes and particularly to means for supporting the steam pipe within the conduit. These conduits are now-* commonly made of earthenware drain pipe split longitudinally to form sections which are cemented together at their edges when the"- conduit is complete to. form a ti ht joint.

T e steam pipes are commonly supported upon rollers which enable the pipes to'expend and contract longitudinally without ringing strain upon the conduit proper and these rollershave hitherto been supported upon chairs which fitted the interior surface 0 the conduit or upon standards embedded in a concrete support constructed in aT connection extending vertically downward from the conduit proper. In the first named con-' struction no means are rovided to prevent the chairs and-rollers rom moving out of position by the ex ansion and contraction 9f the pipes. The last named construction 15 expensive and difficult to make as it entails making an offset or T joint in the condu'it proper with an extra amount of excavation in the trench. and the use of an extra amount of material.

- The object of my invention is to construct a suitable sup ort for the rollers which, while having t e a vantage of a concrete foundation, will do away with the necessity for a T connection in the conduit itself.

According to'-my invention I support the roller 11 on vertical standards which extend clown t. rough openings in the lower pipe '-sect1on terminating in the concrete foundation beneath the pipe which thus serves as a support for the pipe and also for the vertical standard and the roller hearing.

I illustrate my invention by means of the accompanying drawing inwhich- Figure 1 represents a cross section of the lower half of one of the split pipe sections at one of the roller supports, Iuig. 2 an en- 'larged detail section the same as Fig. 1

showing the hoilow standard in section, and Fi 31s a perspective Vle-W showmg the re er support and ad acent parts.

The roller support for the ilpe is carried.

on the upper ends of suit standards which extend downward through a pair of openings J J formed in the bottom of the conduit pipe and are embedded in the concrete 'foundation B. As here shown the standards are composed of sections of'iron pipe I extending upl into the conduit and fitting into each of t e standards I is a spindle G having a socket G on its upper end. The spindle and socket are capab e of vertical adjustment and are held at the proper height for grading, the steam pipe by a suitable number of washers R mte osed between the u per endof the standards and the sockets (g The rollers which are here shown as two in number E and Fare loosely mounted on a horizontal rod H which has each end H reduced in diameter and fitted into one of the sockets G.

In laying the conduit the section A in ers are put in place slip ing the rollers upon the horizontal rods 'an of the rods in the socket (if. The spindles are now slipped into the hollow standards and a suit ble number of washers R interposed to raise the rollers to the required grade. Ji ter the steam pipe is laid the upper section of the conduit pipe is cemented to the lower section at the edges and the whole packed with loose asbestos or other suitable non conducting material. It will be seen that by" the use' of my invention the roller supports can be quickly and accurately placed and when the conduit is complete they form a solid and permanent construction which will not get out of position.

It is evident that the rollers may be supinserting the ends ported on the upper ends of the standards otherwise than herein shown and that other changes may be made in the details of the device as set forth without departing from the s irit of my invention.

I c aim s 1. The herein described conduit for underground steam pipes comprising a split pipe section having a pair of openings in the bottom thereof, a concrete support on which said pipe section rests, a standard extending 1 through each of said openin s and embedded in the concrete support an a roller carried pipe section having a pair of openings in the i bottom thereof, a concrete sup ort on which by said standards.

2. The herein described conduit for underground steam pipes comprising a split said pipe section rests, a ho ow standard extending through each one of said openings and embedded in the concrete support, a

spindle fitting each of said hollow standards and a roller carried by said spindle. 3. The herein' described conduit for underground steam pipes comprising a split pipe section having a pair of openings in the bottom thereof,--a concrete support on which the ipe section rests, a hollow standard exten in throu h each of said openings and embed ed in t e concrete support, a s indle fitting each of said hollow supports an having a socket on its upper end, a horizontal rod. fitting said sockets, a roller on said rod and washers interposed between the upper end of the hollow standard and the socket.

In witness whereof I have hereunto set my hand this 12th day of Feby., 1909.

SETH W. HERSEY.

Witnesses:

S. W. BATES, E. W. DENNIS. 

